motiejus/zig

commit b077e2979c4ec21173e0ffa20ab7ee0c750a3ddc (tree)
parent a7387f0047a1bb67c31e947a251171834a3f9817
Author: Andrew Kelley <andrew@ziglang.org>
Date:   Sun,  6 Jul 2025 19:41:36 -0700

std.io.Reader: fix peekByte

Diffstat:
M
lib/std/io/Reader.zig
 | 
9
+++++----

1 file changed, 5 insertions(+), 4 deletions(-)
diff --git a/lib/std/io/Reader.zig b/lib/std/io/Reader.zig
@@ -1060,11 +1060,12 @@ pub fn fillMore(r: *Reader) Error!void {
 pub fn peekByte(r: *Reader) Error!u8 {
     const buffer = r.buffer[0..r.end];
     const seek = r.seek;
-    if (seek >= buffer.len) {
-        @branchHint(.unlikely);
-        try fill(r, 1);
+    if (seek < buffer.len) {
+        @branchHint(.likely);
+        return buffer[seek];
     }
-    return buffer[seek];
+    try fill(r, 1);
+    return r.buffer[r.seek];
 }
 
 /// Reads 1 byte from the stream or returns `error.EndOfStream`.